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Cloud Comparison

Azure vs AWS


Infrastructure As A Service

(AWS) EC2 Instance - elastic cloud compute

Pricing 

1. On demand - pay by hour or pay by second based on the type of instances  (Testing Purpose)

2. Reserved - reserved capacity for One or Three years (For Production, like reserved capacity requirement). The standard reserved instance - upto 72% of the reserved price. The Convertible reserved instances (change the reserved instance to greater capacity like t3 medium to t3 large - upto 54% off on the demand price). Scheduled reserved instance - like fraction of the day , window or month.

3. Spot instances -  instances would be terminated or hibernated if the, not available, price fluctuates  with supply or demand

4. Dedicated - physical EC2 instances, for Compliance or regulatory requirements or licensing requirement

Savings plan - Commit for one or three years   


(Azure) Azure Virtual Machines



Serverless Computing  Function as a service - FAAS , This is an serverless Solution that allows you to write less code, maintain less infrastructure, scale the infrastructure . Serverless computing provides - Auto scaling, High Availability,  Capacity Provisioning , patching

Advantages - Time to market, lower costs , scalable, EVENT Driven, charged only when code is executed.   

AWS serverless -  Lambda, SQS (Simple Queue Service) is an messaging queue that allows you to decouple and scale the application, SNS (Simple Notification Service) send text messages , email and notifications, API Gateway, Dynamo DB (NQSQL DB), S3  

(AWS) Lambda


(Azure) Azure Functions


Coding - 

Function Code 

Function App - A function app provides an execution context in Azure in which your functions run. It is an unit of the deployment and management of one or more functions i.e. an function app can contain one or more functions that can be deployed , managed and scaled together, all share the same pricing model.   The function app resources are the  storage account and , operating systems and the Service plan, For Monitoring you can select the Application Insights  

Folder structure 

What are the Service plan available for the Azure functions ?

Function Trigger - Every Function APP, has exactly one trigger, This trigger causes the function to RUN .  Http Request Trigger (API or Web Hooks) , Timer trigger (Scheduled Tasks) , Blob Storage trigger (data operations) , Queue Trigger , Cosmos DB Trigger, Event Grid Triger , Microsoft Graph Trigger   

The HTTP Request Trigger, can be secured 


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